.header {
  background-color: #fff;
  padding: .4rem;
  height: 3.2rem;
  border-bottom: 1px solid #ccc;
  position: sticky;
  top: 0;
  z-index: 999;

  .header-logo {
    color: #1e90ff;
    font-size: 1.6rem;
    text-align: left;
  }

  .header-txt {
    font-size: .6rem;
    display: inline-block;
    color: #999;
    padding-left: .3rem;
  }

  .ant-menu {
    line-height: 2.6rem;

    .ant-menu-item {
      font-size: .9rem !important;
      padding: 0 1rem;
    }
  }

  .mask-menu-container {
    line-height: 40px;

    .mask-menu {
      display: none;
      position: absolute;
      top: 30px;
      left: -30px;
      z-index: 999;
      border-radius: 5px;
    }

    &:hover .mask-menu {
      display: block;
    }
  }
}
